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Congestion control method and device for multi-stage clos system

A technology for congestion control and link congestion, which is applied in the field of congestion control of multi-level CLOS systems and can solve problems such as congestion and system failure to operate normally.

Active Publication Date: 2019-01-22
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the network scale increases and the system continues to expand, the probability of such congestion is increasing. If it is not controlled, the entire system will not operate normally.

Method used

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  • Congestion control method and device for multi-stage clos system
  • Congestion control method and device for multi-stage clos system
  • Congestion control method and device for multi-stage clos system

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Embodiment Construction

[0061] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0062] see image 3 As shown, the embodiment of the present invention provides a congestion control method for a multi-level CLOS system, the congestion control method includes the following steps:

[0063] Step S1: Determine the type of congestion control that the CLOS system needs to perform. If the type of congestion control is global congestion control, then go to step S2; if the type of congestion control is routing congestion control, go to step S3; if the type of congestion control is link Congestion control, then turn to step S4;

[0064] Step S2: Make a corresponding response according to the global congestion indication GCI generated by the system, control the global congestion caused by the Ethernet multicast by reducing or stopping the cell sending service of the Ethernet multicast, and turn to step S5;

[0065] Step S3:...

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Abstract

The invention discloses a congestion control method and device for a multi-stage CLOS system, and relates to the technical field of congestion control of the CLOS system. The congestion control method includes: determining the type of congestion control that the CLOS system needs to perform, and if it is global congestion control, making a corresponding response according to the GCI indication generated by the system, and controlling the overall Congestion; if it is routing congestion control, respond accordingly according to the RCI indication generated by the system, and control routing congestion by reducing unicast traffic; if it is link congestion control, according to the LLFC indication generated by the system, by reducing valid data to control link congestion; when it is determined that congestion control needs to be continued, the above steps are performed cyclically. The invention can prevent the working efficiency and performance of the CLOS system from being reduced due to the occurrence of congestion, thereby maintaining the overall dispatching ability and performance of the system.

Description

technical field [0001] The present invention relates to the technical field of congestion control of a CLOS (Close Switching Architecture) system, in particular to a congestion control method and device for a multi-level CLOS system. Background technique [0002] The CLOS system based on cells (CELL) has the characteristics of scalability and large capacity, and has become the mainstream of switching chips at present. Generally speaking, a CLOS system includes several IMs (input modules), several CMs (intermediate modules) and several OMs (output modules), which can form a 3-level CLOS structure and can be easily expanded into a 5-level CLOS structure, the common 5-level CLOS structure such as figure 1 shown. Specific to practical applications, such as figure 2 As shown, a 5-level CLOS system can be formed by folding, that is, the IM and OM functions are implemented in one chip, while the CM function is implemented in another chip. Among them, the chip that realizes the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/825H04L12/813H04L47/20
CPCH04L47/20H04L47/25H04L47/263
Inventor 屈琴书张伟
Owner FENGHUO COMM SCI & TECH CO LTD
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